Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb076d332840316f…

MALICIOUS

PDF

70.4 KB Created: 2021-02-23 10:43:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: bfbf795844d37eb4aad316aa27c28479 SHA-1: 86fa210183c2033f6bbc650f1223ab45b35ec9bf SHA-256: fb076d332840316ffed146b2efe0d382ec60707a21958b33ab29f48b2b6c7405
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://maypoin.ru/wix?keyword=fisher+price+newborn+to+toddler+rocker+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4498842/normal_6010a9902b2e6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451932/normal_5fde6f1e726e0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486975/normal_5ff32538316c9.pdfIn PDF document text
    • http://findfreegirl.com/zawusubidepetolemuduu20.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481515/normal_5ff3a9093aac8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486745/normal_5ff05d7be9e09.pdfIn PDF document text
    • http://reduslim-shopofficial.site/43976442498sjss1.pdfIn PDF document text
    • http://lnstagramverifiedbadgeservice.com/wifuvepulawalajosanetepalx7rm.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424645/normal_5fd36c74a31f6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446643/normal_6014095dc8762.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486778/normal_600d51c9271bf.pdfIn PDF document text
    • http://vakafubetax.iblogger.org/is_death_cure_the_last_maze_runner_movie.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490519/normal_5fcf455b2e8be.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/lowebemuwojiso/66122302667.pdfIn PDF document text
    • http://tewalilakoj.rf.gd/predator_2000_generator_leaking_oil.pdfIn PDF document text
    • https://s3.amazonaws.com/wizomoravazub/background_powerpoint_cartoon.pdfIn PDF document text
    • https://s3.amazonaws.com/jirebonudur/acute_heart_failure_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/ligole/movinetukiz.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ca3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA3C 5444 bytes
SHA-256: 4dc0262259826d3bde7ebc4b7805759059bc57e9fdcf6c9f185f88076a747ca7
font_01_sfnt_off0000dc93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC93 9720 bytes
SHA-256: 0dce85dabec030864a9e0d30db3025d7f92c15b00cef998bae7c5d9e39d1c7b2
font_02_sfnt_off0000fdca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDCA 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176